Rotary device.



M. GOLUBOVITZ.

ROTARY DEVICE.

APPLICATION FILED JULY 12,1912. 1,050, 1 23, Patented Jan. 14,1913.

2 SVHEETSSHEET 1.

H WHIHHHIHH "NH 7 IN VEN TOR WITNESSES BY I maeh A TTORNE Y M.GOLUBOVITZ.

ROTARY DEVICE.

APPLICATION FILED JULY 12,1912.

1,050,123, Patented Ja1114,1913.

2 SHEETS-SHEET 2.

A TTORNE Y COLUMBIA PLANOGRAPH COHWASH'INGTON. I)' C- l UNITED STATESPATENT FFIQ. i

MILLARD GOLUIBOVITZ, OF NEAR LEBANON, PENNSYLVANIA.

ROTARY DEVICE.

To (17K zv/zom e't may concern:

Be it known that I, MILLARD GOLUBOVITZ, a citizen of Servia, residingnear Lebanon, in the county of Lebanon and State of Penn sylvania, haveinvented certain new and useful Improvements in Rotary Devices, of whichthe following is a specification.

My invention relates to rotary devices or machines which are adapted totransmit rotary motion from a driving shaft to an arbor by means of atrain of gears in such a manner as to produce a very rapid rotation ofthe arbor in comparison with the speed of the driving shaft; and theinvention relates more particularly to devices of this kind which may beutilized for the rotation of an emery wheel, an egg heater, or othersimilar tools or appliances, and which admit of the adjustment of suchappliances through a great variety of vertical and horizontal positions.

One of the objects of my invention is to supply a device of this kindwhich will be comparatively light in weight and hence easily portable,but will nevertheless be operable without a clamping or other attachmentto a bench or lateral support.

A further object of the invention is to provide means whereby the rotaryarbor may be readily and quickly raised and lowcred, turned in anydesired horizontal position and swung to the right or left in suchposition, as well as bodily revolved through the circumference of acircle having the driving shaft as a center, and whereby the arbor maybe rotated and simultaneously swung from right to left.

A further object of the invention is to provide a handle to enable theoperator to grasp and firmly hold the device with one hand, whileactuating the rotary mechanism wit-h the other.

A further object of the invention is to provide a base or support forthe main portion of the device which will firmly rest upon the floor orother horizontal surface and grip the same in such a manner as toprevent sliding.

lVith the above and other objects in view, the invention consists of thenovel construction and the arrangement of parts hereinafter fullydescribed, illustrated and claimed.

In the accompanying drawings Figure l is a front elevation of a rotarymachine constructed in accordance with my invention. Fig. 2 is a sideelevation thereof Specification of Letters Patent.

Application filed July 12, 1912.

PatentedJanlc, 1913.

Serial No. 709,020.

showing an emery wheel mounted for rotation upon the arbor. Fig. 3 is afront view of the gear casing showing a portion of the front wall brokenaway to give a view of the interior parts. Fig. 4 is a transversesectional view taken on line 4 4 of Fig. 3 with the crank handle and themomentum crosspiece removed; and Fig. 5 is a fragmentary View of aportion of the driving crank.

Like characters of reference indicate like parts throughout the severalviews.

Referring to the drawings, 6 indicates a circular base upon which iscentrally erected a hollow or tubular up-right 8 adapted to receive fortelescopic and rotary movement therein a standard 14. On the upper partof the standard is pivotally mounted an annular split band 20 embracingand carrying the main portion of the mechanism, and the upper portion 9of the upright 8 is eXteriorly reduced in diameter and provided with alongitudinal slot 10 to render the same resillent and capable of aslight compression against the standard, as well as to provide ashouldered rest for the ring band clamp 11, which latter is providedwith ears 12 suitably perforated and threaded for the admission andengagement of the thumb screw 13, whereby the clamp may be drawn up andtightened to fasten the standard 14 in the desired posit-ion. From theupper end of the standard 14 projects a perforated lug 15; and from thelower part of the annular band 20 depends a corresponding lug 21 with acoinciding perforation, the latter being threaded to engage a bolt 19passing through lug 15. Said bolt 19 has an enlarged head 16 adapted tofrictionally contact the outer face of the lug 15 and it carries a slidebar handle or other suitable leverage device for forcibly clamping theband 20 to the standard when it is desired to secure the former in anangu;

lar position.

The casing 27 is cylindrical in form and consists essentially of twocircular disks 27 and 27 which constitute the side walls thereof and areconnected by means of the hub 30. Annular flanges or collars 81 on theopposite sides of the hub form seats against which the disks rest, andthe latter are re tained in position by means of the nuts 32 threadingon the reduced opposite ends of the hub. A cylindrical plate 28 incloses1 the casing peripherally and forms a bearing for the annular band 20whereby the casing is embraced and held.

The hub has a central bore in which is journaled the driving shaft 29 onwhich is rigidly mounted outside of the casing the gear wheel 51 andadjacent thereto the crank having the revoluble handle 55 at one end anda weight 56 on an extension of the other end, said weight being adaptedto cminter-balance the handle and to act in conjunction with additionalweights hereinafter referred to for producing momentum and uniformmotion in the operation of the device. A nut 5 L threading on the end ofthe shaft retains the crank in position.

Secured to the driving shaft on the opposite side of the casing by meansof a nut 67 is a cross-piece 65 preferably placed at rightangles to thecrank 53, and on the opposite ends thereof are mounted weights 66 ofsubstantially the same form as the weight 56, which assist the latter inproducing momentum and uniform. movement.

A train of gears commencing with gear 51 serves to communicate motionfrom the driving shaft to the arbor 39 located near the periphery of thecasing. Said gears, with the exception of the pinion 52 mounted on thespindle 3% and meshing directly with the gear 51, are contained withinthe cas ing; and the same are so proportioned as to give a very rapidrotation to the arbor 39 in comparison to the speed of the drivingshaft. This increment is obtained by placing a comparatively large gear47 on the shaft 34, which meshes with a pinion 48 on spindle whichcarries the large gear l9 meshing with a pinion on the spindle 36forming the interior extension of the arbor.

A collar 37 placed on the spindle 36 ad jacent the inner face of theside wall 2? and preferably secured by a pin 38, is employed to retainthe arbor in position transversely. The outer end of the arbor 39 isreduced in diameter and shouldered for the reception of an emery wheelsuch as l0 (Fig. or for any other tool or appliance to which it isdesired to impart rapid rotation, and said wheel or appliance ispreferably secured to the arbor by a nut 42 engaging the threaded end ilthereof.

(in the peripheral wall 28 of the casing at spaced intervals, areprovided a series of radially extending lugs or projections 4-6 shown inthe drawings as the heads of screws threaded into the wall, said lugsbeing arranged on either side of the band 20 to serve as guides andprovide a seat therefor, and the same are so located as to keep the bandsubstantially midway between the side walls of the casing. The band 20is preferably made of spring steel, and the same consists of twosemi-circular branches em tending oppositely from the lug 21 andapproaching each other at a point diametrically opposite said lug, wheretheir terminal portions are turned at right angles to a tangent of theband and are shaped into ears having perforations to receive the thumbscrew 23, one of said ears being threaded to permit the oppositebranches of the band being drawn together. A handle 24, having aflattened perforated extension 25 inserted between the cars 22 whichalso receives the screw 23, is adapted to be pivotally secured to theband. The object of this handle is to provide a means for the operatorto grasp and firmly hold the device with one hand while actuating thedriving mechanism with the other, and it will be understood that according to the construction here described, the handle 24L may beswiveled in a plane transversely to the band 20, and that it may thus beturned and secured in any position most convenient to the operator inview of the particular position of the driving mechanism. The band 20acts as a bearing for the casing, which may be rotated therein so as tobring the arbor 29 to the point where the tool or appliance mountedthereon or connected thereto may be most effectively applied; and topermit of this rotation as well as to allow sufficient frictionalsurface to allow the band to grip and securely hold the casing when thescrew 23 is drawn up, a series of three anti-friction rollers 43, spacedat regular intervals about the circuinference of the casing areprovided. These rollers are journaled in the side walls of the casingand are each provided with a central cylindrical enlargement 4L5extending through suitable openings 4% (see Fig. 4) in the peripheralwall of the casing, which said enlargements contact the inner face ofthe band 20 and permit the casing to be freely turned within the bandwhen the tension upon the set screw 23 is removed.

In order to grasp the casing for rotation within the band, I provide alatch. pin 58 near the end of the crank 53 adjacent the handle 55,having a milled head 57. This pin passes through a suitable opening 60in the crank and has cross-pieces or stops 59 and 63, one on either sideof the crank, as is more clearly shown in Fig. 2. An extensible spiralspring surrounds the inner portion of the pin and bears against theinner face of the crank at one end and against the stop 63 at the other.In the outer face of the crank, adjacent the opening 60 and extendingtransversely on either side thereof, is a transverse socket for theadmission of the stop 59, and in the wall of the casing at an equalradial distance from the center of the drive shaft as the latch pin isan opening or socket 64 for the reception of the inner end of the latch.

To insure a firm hold upon the floor or other horizontal surface uponwhich the machine is placed when operated, I attach to the bottom of thebase a number of claws or spurs 7 with downwardly extending points whichsink into the supporting surface a limited distance and obviate alltendency toward slipping or sliding due to force exerted upon themachine.

The operation of the device will be readily understood. By means of thehandle 24, the operator first pulls up the casing to the desired heightand secures the same by tightening the clamp 11 with the thumb screw 13.Ihe band 20 and the casing contained therein are then swung to thedesired transverse position and secured in place by tightening the bolt16. The range of adjustnent of the arbor and the tool which it carriesis greatly increased and the tool rendered adjustable to a greatervariety of positions by loosening the thumb screw 2", rotating thecasing within the band, and again tightening the screw when the desiredposit-ion has been attained. To rotate the casing the crank 53 is turneduntil the latch pin 58 coincides with the socket 64 on the adjacent faceof the casing. The latch pin is then turned until the stop 59 coincideswith the slot 61, when, owing to the force of the spring 62, the stopwill be drawn into the slot and the end of the latch 'pin into thesocket 64:, whereby the casing will be attached at two points to thecrank and may be turned within the band by means of the handle 55. Whenit is desired to again disconnect the crank from the casing, the latchpin is withdrawn from the socket and given a quarter turn, when thecrank will be freed from the casing and its independent move mentrestored. Both in the latter operation and in the actuation of thedriving mechanism, the handle 24: may be turned in any position mostconvenient to the operator.

I have found that by using weights such as 56 and 66 upon the end of thecrank opposite the handle and on the ends of the cross bar 65, aconsiderable momentum and a uniform motion can be imparted to themachine, which compensates for variations in the retarding forcesexerted upon the arbor through the tool.

It will be clear that it is possible, by loosening the bolt 19, torotate an emery wheel mounted on the arbor while at the same time, byswiveling the casing, giving the wheel a bodily movement through the arcof the circle having its center at the bolt and this I find to be ofgreat advantage in sharpening the spurs of horses shoes which can bedone without removing the shoe from the horse.

It is obvious that by attaching a flexible shaft to the arbor 39, rotarymovement may be communicated to an egg heater or other similar applianceheld at a distance from a machine.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. In a device of the class described, the combination of a suitablesupport, a split hand ring pivotally mounted thereon, a cylindricalcasing journaled in said ring and adapted to be rotated therein andsecurely clamped thereby, rotary mechanism arranged in said casing, andmeans pivotally and adjustahly connected to said ring for holding thedevice with one hand while actuating the rotary mechanism with theother.

2. In a device of the class described, the combination of a verticallyadjustable and horizontally revoluble support, an annular band pivotallyand adjustably mounted thereon, said band comprising two semicircularbranches meeting at a point diametrically opposite the pivot, a handlepivotally interposed between said branches and means for drawing thebranches together for fastening the handle therebetween, a cylindricalcasing embraced by said band and bodily revoluble therein and adjustablethereby, rotary mechanism arranged in said casing, a handle foractuating the said rotary mechanism and a laterally extending receivingarbor mounted near the periphery of said casing.

3. In a device of the class described, the combination of a suitablesupport, an annular hand pivotally mounted thereon, a cylindrical casingj ournaled in said band and adapted to be bodily rotated therein andclamped thereby, a driving shaft centrally journaled in said casing anda crank for revolving said shaft, a laterally extending tool bearingarbor mounted in said casing near the periphery thereof, and a train ofgears adapted to communicate rotary motion from said driving shaft tosaid arbor.

4. In a device of the class described, the combination of a suitablesupport, an annular band pivotally mounted thereon, a cylindrical casingjournaled in said band and adapted to be bodily rotated therein andclamped thereby, a series of anti-friction rollers j ournaled in saidcasing adjacent the periphery thereof and extending through suitableopenings therein to contact said band, a driving shaft centrallyjournaled in said casing and a crank for revolving said shaft, alaterally extending tool bearing arbor mounted in said casing near theperiphery thereof, and a train of gears adapted to communicate rotarymotion from said driving shaft to said arbor.

5. In a device of the class described, the combination of a suitablesupport, an annular band pivotally mounted thereon, a cylindrical casingjournaled in said band, a driving shaft centrally journaled in saidcasing and projecting from either side thereof, a crank having arevoluble handle attached to one end of said driving shaft and a weightmounted on an extension of the crank opposite said handle, a cross barex tending at right angles to said crank secured to the other end ofsaid driving shaft with similar Weights mounted on the opposite endsthereof, a laterally extending tool bearing arbor journaled in saidcasing ad jacent the periphery thereof, and a train of gears adapted tocon'nnunicate rotary motion from said driving shaft to said arbor.

6. In a device of the class described, the combination of a suitablesupport, an annular band pivotally mounted thereon, a cylindrical casingjournaled in said band and adapted to be bodily revolved therein, adriving shaft centrally mounted in said casing, an arbor mounted nearthe periphery thereof, and suitable gearing for communicating rotarymotion from said driving shaft to said arbor, a crank secured to one endof said driving shaft, and locking means ar- Copies of this patent maybe obtained for ranged on said crank for detachably loclc ing the sameto the casing to prevent rotary motion of the crank relative to thecasing and. to permit the rotation of the casing Within the band bymeans of the crank.

7. In a device of the class described, a circular supporting baseadapted to rest upon a horizontal surface, and a series of spurs havingdownwardly extending points adapted to sink a limited distance into suchsurface and projecting at intervals from the bottom of the base, incombination with a pivotally mounted holding handle arranged at a pointabove the base.

In testimony whereof I have hereunto affixed my signature in thepresence of two Witnesses.

MILLARD GOLUBOVITZ. Witnesses DAVID BRIGHTBILL, CATHARINE ELY HARDY.

five cents each, by addressing the Commissioner of Fatents,

"Washington, D. C.

